necesary math to translate sfplay time into quicktime time
Sep 28 2008 | 7:29 pm
hello sorry i couldn
- Zachary SeldessSep 29 2008 | 2:13 amHi autogusto,First get the timescale of the movie you're working with (gettimescale message). Say your movie has a QT timescale of 600. That means that 600 QT time values == 1000 msecs. So 1200 QT time values would be 2 seconds, 1800 QT values would be 3 seconds, etc.Zachary
- Rob RamirezSep 29 2008 | 5:57 amhere's relevant parts from a patch that syncs qt.movie to groove~ object. the update interval of the number~ object sets your framerate.
- autogustoSep 30 2008 | 4:21 amthank you guys for the replyi have seen this patches using groove although i'm stuck in the interval=framerate relation i can't really see how it works (someone?) although i need to use sfplay because the files are too large to be loaded into ram, and since i'm stuck i haven't come with a reliable way to control quicktime frames or time through sfplayany help will be appreciatedAriel
- Rob RamirezSep 30 2008 | 3:59 pmsfplay~ has an optional position signal output. enable that output and use that in place of the groove~ output.sfplay's is millisec position, so you have to divide by 1000.0 and multiply by the timescale (usually 600), to get get the proper quicktime "time" (not "frame") attribute value based on millisecond time.
- PKMOct 01 2008 | 7:54 amhi-dekam has posted a nice patch in this thread: https://cycling74.com/forums/index.php?t=msg&goto=61294&rid=0&S=a62e53eb1bc03222c4c1a0aed6286458#msg_61294hope that helps, parag